Light Twin speeds??

[Bleed Air]

I doing a little research.
I'm sure there is lots of guys and girls here flying light twins.
I wondering what TAS and fuel burns you get out of various light twins. I also realize different years and models have different specs.
I know there are web sites out there that state this info, but from what I've seen the numbers they give seem a little on the high side. So i thought I'd ask the people that fly them everyday or have flown them.
Info on any light twin c-310, aztec, seneca, baron, cessna twins, piper twins etc.
Thanks in advance.

 

[BradG]

Only thing i've flown is a Beech Duchess.

Normal Cruise : 5-7000 155 TAS 20GPH
Economy Cruise : 9-11000 145 TAS 14-15 GPH

I fly it with the owner on occasion, and we do the 11,000ft thing. Does pretty good up there. Decent speed and fuel burn.

 

[apr174]

Piper Seneca II:

Cruising Speed - 75% power @ sea level - 150 knots
Cruising Speed - 75% power @ 6000' MSL - 162 knots
Optimum Cruising Speed - 65% power @ 9000' MSL - 160 knots

Fuel Consumption - 75% power - 20.6 gph
Fuel Consumption - 65% power - 18.3 gph

 

[310]

Cessna 310C (1959)
Straight tail, tuna tanks, 5 seats, 4830 LBS MTOW, 130 gal fuel
payload almost 1500 LBS
engines Cont IO-470D 260hp ea
20/2350 is 60% or 21/2350 (63%) yields about 150 knots down low in bumps in dense cold air or higher (7.5-12.5) yields about 170 k. Total burn between 23gph to (21gph at 12500) (Can't get 20 inches at 12500 ) Will go faster but does not seem worth the extra fuel. In rough air and fairly heavy if you want to reduce speed below manuvering speed of 143 knots indicated requires power to be reduced to 18 or 19 inches/ 2300.

 

[sydeseet]

Baron 58:
180-185 KTAS @ 30-32 GPH all day long. VMO is 223 so push the nose over in the descent and get there early.
A seneca is a cheaper imitation of a Baron - costs less but much bigger headache (turbo) for similar speed. They also fly like a wounded whale. I liked the Cessna 414 but I consider them to be a slightly different class - pressurization and all that.

 

[cjh]

Piper Navajo

180kts @ 34 gph consistently. 5.5 hours fuel at that burn rate. Great airplane.

 

[Lrjtcaptain]

1994 Baron B58

i operate around 7000-12000 feet.
usualy burn about 28-30 gals an hour and usually always get
195kts TAS

That is with the IO550

 

[jetdriven]

Piper PA-31-350 Navajo Cheiftain
175 KTAS @ 38-40 GPH (30"-2300)

Cessna 401-401A-402A-402B
175 KTAS @ 32 GPH 30.5" 2300 RPM

Cessna 402C
180 KTAS @ 32 GPH (31.5"-2300RPM)

Beech B-55 Baron (1979 with boots)
170-175 KTAS @ 28GPH

Cessna 404 Titan
185 KTAS @ 45-50 GPH (depends on altitude)

Cessna 421C
200 KTAS @ 42 GPH (FL180)